​<picture>
  <source srcset="foo.png?as=avif" type="image/avif">
  <source srcset="foo.png?as=jpg" type="image/jpeg">
  <source srcset="foo.png?as=png" type="image/png">
  <source srcset="foo.png?as=tiff" type="image/tiff">
  <source srcset="foo.png?as=webp" type="image/webp">
</picture>
